Stir drops of food coloring into the frosting until you have a shade of watery blue. Frost the cupcakes.
For each cupcake, create a pair of frog eyes by slicing a gumdrop in half. Press a white chocolate chip tip-down into the cut surface of each gumdrop half, centering it near the bottom edge. Squirt a dab of black icing onto each chip.
Set the frog eyes on the cupcakes, gently pressing them partway into the frosting to hold them in place.

(This recipe was contributed as part of a "Cook of the Week" feature.)